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You searched for: subject:"energy storage"
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[texts]Global Grid Scale Energy Storage Market 2012 2016
The Global Grid-scale Energy Storage market has also been witnessing the increased demand for decentralized power generation. Analysts forecast the Global Grid-scale Energy Storage market to grow at a CAGR of 31.58 percent over the period 2012-2016. 
Keywords: Global Grid-scale Energy Storage Market; Grid-scale Energy Storage Market; Grid-scale Energy Storage Market 2016
Downloads: 12
[texts]22. Eng A Single Stage Solar Power Converter For PV G S Suganya - G. S. SUGANYA, P. MOHAN & K. N. BHANUPRAKASH
The main concept of the new converter is to use a Single - stage three phase grid ties - solar PV converter to perform dc/dc and dc/ac operations. This converter solution is appealing for PV-battery applications, because it minimizes the number of conversion stages, improving efficiency and reducing cost, weight and volume. 
Keywords: Converter; Energy Storage; Photovoltaic (PV); Solar
Downloads: 1
[texts]Optimal Sizing of Combined PV- Energy Storage for a Grid-connected Residential Building
In  this  paper,  load  profile  and  operational  goal  are  used  to find  optimal  sizing  of  combined  PV-energy  storage  for  a future  grid-connected  residential  building.  As  part  of  this approach,  five  operational  goals  are  introduced  and  the annual  cost  for  each  operation  goal  has  been  assessed. Finally,  the  optimal  sizing  for  combined  PV-energy  storage has been determined, using direct search method...
Keywords: PV; Energy Storage; Operational Goal; LV Network Constraints
Downloads: 12
[texts]Optimal Sizing of Combined PV- Energy Storage for a Grid-connected Residential Building
In  this  paper,  load  profile  and  operational  goal  are  used  to find  optimal  sizing  of  combined  PV-energy  storage  for  a future  grid-connected  residential  building.  As  part  of  this approach,  five  operational  goals  are  introduced  and  the annual  cost  for  each  operation  goal  has  been  assessed. Finally,  the  optimal  sizing  for  combined  PV-energy  storage has been determined, using direct search method...
Keywords: PV; Energy Storage; Operational Goal; LV Network Constraints
Downloads: 11
[texts]Prevaporization of liquid fuel in a small ramjet engine - Gehring, F
Air flow velocity, altitude, fuel-air ratio, fuel flow velocity, and pressure effects on fuel temperature before and after prevaporization in ramjet engines
Keywords: ENERGY STORAGE; POWER EFFICIENCY; SUPERCONDUCTORS (MATERIALS); COST ANALYSIS; PERFORMANCE
Downloads: 139
[texts]12. Eng Maximizing Of Solar Absorption Farhan Lafta Rashid - FARHAN LAFTA RASHID, KHUDHAIR ABASS DAWOOD & AHMED HASHIM
Suspensions of nanoparticles (i.e., particles with diameters < 100 nm) in liquids, termed nanofluids, show remarkable thermal and optical property changes from the base liquid at low particle loadings. Recent studies also indicate that selected nanofluids may improve the efficiency of direct absorption solar thermal collectors. Nanofluids are prepared by dispersing and stably suspending nanometer sized solid particles in conventional heat transfer fluids...
Keywords: Glass Impurities; Energy Storage; Enhancement Absorbed Heat; Solar Energy
Downloads: 8
[texts]Isolating Curvature Effects in Computing Wall-Bounded Turbulent Flows - Rumsey, Christopher L.
The flow over the zero-pressure-gradient So-Mellor convex curved wall is simulated using the Navier-Stokes equations. An inviscid effective outer wall shape, undocumented in the experiment, is obtained by using an adjoint optimization method with the desired pressure distribution on the inner wall as the cost function. Using this wall shape with a Navier-Stokes method, the abilities of various turbulence models to simulate the effects of curvature without the complicating factor of streamwise pr...
Keywords: NICKEL HYDROGEN BATTERIES; CYCLES; ENERGY STORAGE; GAS ANALYSIS
Downloads: 80
[texts]14
The Automatic Generation Control is an integralpart of Energy Management System. In this particular workan interconnected hydrothermal power system was studied indetail with the corresponding response of Energy storagedevices mainly the SMES and CES that played a vital rolealong with state the variation in operation i.e.; frequencyresponse and tie-line effect with the conventional controllersdetermined below: Proportional (P),Integral(I),ProportionalIntegral(PI) and Proportional Integral Derivat...
Keywords: Automatic Generation Control; Super conducting magnetic energy storage device; Capacitive Energy Storage; Integral Squared Error; PID controller
Downloads: 4
[texts]Energy accumulator in optimization problems of spaceflight with limited power - Grodzovskiy, G. L.
Energy accumulator for optimal control of low- thrust space flight
Keywords: ACCUMULATORS; PROPULSIVE FLUID ACCUMULATOR /PROFAC/; ENERGY STORAGE; LOW THRUST; LOW THRUST PROPULSION; OPTIMAL CONTROL; OPTIMIZATION; SPACE FLIGHT; ENERGY STORAGE DEVICE; LOW THRUST PROPULSION
Downloads: 60
[texts]Foot Reaction Forces during Long Duration Space Flight - Gopalakrishnan, R.
Musculoskeletal changes, particularly in the lower extremities, are an established consequence of long-duration space flight despite exercise countermeasures. It is widely believed that disuse and reduction in load bearing are key to these physiological changes, but no quantitative data characterizing the on-orbit movement environments currently exist. Here we present data from the Foot Experiment (E318) regarding astronaut activity on the ground and on-orbit during typical days from 4 Internati...
Keywords: ELECTROCHEMISTRY; ENERGY STORAGE; LITHIUM BATTERIES; ELECTROLYTIC CELLS; CARBONACEOUS MATERIALS; ELECTROCHEMICAL CELLS; DEGRADATION; METAL IONS; SPECTROSCOPY
Downloads: 20
[texts]A simple algorithm for rotating the plane of an orbit in the central and noncentral gravitational field of the earth - Veselovskiy, V. V
Algorithm for rotating orbital plane of satellite in central and noncentral earth gravitational field
Keywords: CIRCUIT DIAGRAMS; CRYOGENICS; ELECTRIC DISCHARGES; ELECTRIC ENERGY STORAGE; SEMICONDUCTORS (MATERIALS); MAGNETIC FIELDS; SUPERCONDUCTING MAGNETS
Downloads: 72
[texts]Utility-Scale Energy Storage Technologies Market - Global Industry Analysis, Growth, Size, Trends and Forecast (2012 - 2018)
The rising global requirement for energy is triggering research and development teams across the globe to develop new systems that can provide better and adequate amount of energy. The utility-scale energy storage technologies market is expected to excel effectively from 2013 to 2018 due to the wide applications that require a large amount of energy. The utility-scale energy storage technologies market has notably excelled in Asia and Australia...
Keywords: Utility-Scale Energy Storage Technologies Market; Transparency Market Research; Market Research Reports
Downloads: 5
[texts]Moving Object Control System - NON
A method is provided for controlling two objects relatively moveable with respect to each other. A plurality of receivers are provided for detecting a distinctive microwave signal from each of the objects and measuring the phase thereof with respect to a reference signal. The measured phase signal is used to determine a distance between each of the objects and each of the plurality of receivers. Control signals produced in response to the relative distances are used to control the position of th...
Keywords: ENERGY STORAGE; AEROSPACE ENGINEERING; LITHIUM BATTERIES; PROTONS; ELECTROCHEMISTRY; ELECTRIC BATTERIES; NANOTECHNOLOGY; FUEL CELLS; NASA PROGRAMS
Downloads: 77
[texts]Wireless Phone Threat Assessment for Aircraft Communication and Navigation Radios - Nguyens, T. X.
Emissions in aircraft communication and navigation bands are measured for the latest generation of wireless phones. The two wireless technologies considered, GSM/GPRS and CDMA2000, are the latest available to general consumers in the U.S. A base-station simulator is used to control the phones. The measurements are conducted using reverberation chambers, and the results are compared against FCC and aircraft installed equipment emission limits...
Keywords: FLYWHEELS; ATTITUDE CONTROL; ENERGY STORAGE; MOTORS; ATTITUDE (INCLINATION); HIGH SPEED; ALGORITHMS
Downloads: 132
[texts]Experimental Investigations on Cold Energy Storage Employing Heat Pipes for Data Center Energy Conservation
A novel type of heat pipe application for cold energy storage has been proposed and discussed in this paper. The cold storage system is aiming at saving electricity for data center cooling. A typical wickless heat pipe thermosiphon (thermal-diode heat pipe) will be employed in this application. The thermosiphon cold energy storage systems can be designed into several types that are ice storage, cold water storage, and pre-cool heat exchanger...
Keywords: Heat Pipe; Thermosiphon; Cold Energy Storage; Data Center; Power Consumption; Energy Saving
Downloads: 6
[texts]A flight investigation of simulated data-link communications during single-pilot IFR flight. Volume 1: Experimental design and initial test - Parker, J. F., Jr.
A Flight Data Console simulation of a digital communication link to replace the current voice communication system used in air traffic control (ATC) was developed. The study determined how a digital communications system reduces cockpit workload, improve, flight proficiency, and is acceptable to general aviation pilots. It is shown that instrument flight, including approach and landing, can be accomplished by using a digital data link system for ATC communication.
Keywords: ELECTROMAGNETIC PUMPS; ENERGY STORAGE; FLOW CHARACTERISTICS; FLOW VELOCITY; REDOX CELLS; FLOW GEOMETRY; FUEL CELLS; PRESSURE DISTRIBUTION
Downloads: 82
[texts]Preliminary Analysis of Pilot Ratings of ''Party Line'' Information Importance - Pritchett, Amy
With the introduction of digital data link communications into the ATC system, there is concern over the potential loss of situational awareness by flight crews due to the reduction in the 'Party Line' Information (PLI). This information is available to the pilot by overhearing communications between ATC and other aircraft. A survey was distributed to determine current PLI use by several pilot operational groups, experience levels and geographic regions...
Keywords: ENERGY STORAGE; FLYWHEELS; ELECTRICAL PROPERTIES; INTERNATIONAL SPACE STATION; MAGNETIC BEARINGS; SPACE STATION POWER SUPPLIES
Downloads: 45
[texts]Distributed Storages Systems for Frequency Stabilization in the Future Power Systems
This paper investigates the frequency stabilization of highlydistributed future ac networks with high penetration of wind generation and energy storage systems. The investigation focuses on frequency stabilization during unintended split of the ac network into small clusters following large network disturbances, and during power unbalance due to the variability of the wind farms output, which are operated with a maximum power tracking scheme...
Keywords: Battery Energy Storage System; Frequency Stability; Renewable Energy Recourse; Smart Grid and VSC
Downloads: 6
[texts]The Mars mapper science and mission planning tool - Lo, Martin W
The Mars Mapper Program (MOm) is an interactive tool for science and mission design developed for the Mars Observer Mission (MO). MOm is a function of the Planning and Sequencing Element of the MO Ground Data System. The primary users of MOm are members of the science and mission planning teams. Using MOm, the user can display digital maps of Mars in various projections and resolutions ranging from 1 to 256 pixels per degree squared...
Keywords: ELECTRODES; FADING; NICKEL HYDROGEN BATTERIES; SWELLING; ENERGY STORAGE; HYDROGEN-BASED ENERGY; SPACECRAFT POWER SUPPLIES
Downloads: 86
[texts]Preparation and Properties of Paraffin/Polyurethane Foams Composite with Flame Retardant as Thermal Energy Storage Materials
Thermal energy storage plays an important role in energy conservation, and can be applied in many areas. Paraffin/polyurethane foams composite with flame retardant as thermal energy storage materials were prepared by absorbing paraffin in honeycomb structure of polyurethane rigid foams. These composites provide a new energy saving materials, which can be used for building heating/cooling systems, and the composites can also enhance the thermal comfort for residents...
Keywords: Polyurethane Foams; Paraffin; Phase Change Materials; Flame Retardant; Thermal Energy Storage
Downloads: 5
[texts]Stable Artificial Dissipation Operators for Finite Volume Schemes on Unstructured Grids - Svard, Magnus
Our objective is to derive stable first-, second- and fourth-order artificial dissipation operators for node based finite volume schemes. Of particular interest are general unstructured grids where the strength of the finite volume method is fully utilized. A commonly used finite volume approximation of the Laplacian will be the basis in the construction of the artificial dissipation. Both a homogeneous dissipation acting in all directions with equal strength and a modification that allows diffe...
Keywords: REGENERATIVE FUEL CELLS; HYDROGEN; OXYGEN; ENERGY STORAGE; SOLAR CYCLES; SAMPLING; HEALTH; SIMULATION
Downloads: 61
[texts]Manned maneuvering unit mission definition study. Volume 2: Appendices to the MMU applications analysis - NON
Information used in identifying representative Manned Maneuvering Unit (MMU) from the many Automated and Sortie Payloads and orbiter subsystems is presented. Representative missions were selected to represent typical MMU applications across all payloads and orbiter subsystems. Data analysis sheets are provided with other applicable information. Calculations used in defining MMU general performance and control requirements to satisfy eleven space missions are included.
Keywords: ELECTRIC ENERGY STORAGE; ELECTRIC EQUIPMENT TESTS; NICKEL CADMIUM BATTERIES; ELECTRICAL PROPERTIES; EQUIPMENT SPECIFICATIONS; PRODUCT DEVELOPMENT
Downloads: 220
[texts]Food And Energy
Lean about the science of food and energy in this fun activity. Suggested Level: LP (Lower Primary)
Keywords: SCI; Nutrition; Energy storage; SCI.LP; Textbooks, manuals etc; Energy transfer
Downloads: 123
[texts]Rehydration beverage - NON
A novel rehydration beverage containing sodium chloride, sodium citrate, and aspartame useful for rapid restoration of hydration homeostasis is disclosed. The beverage is particularly useful for restoration of normal body fluid volumes and their intracellular and extracellular distribution during a hypohydration state observed in astronauts and air passengers.
Keywords: COMMERCE; MAGNETIC ENERGY STORAGE; RISK; FEASIBILITY ANALYSIS; RESEARCH AND DEVELOPMENT; SUPERCONDUCTIVITY; TECHNOLOGICAL FORECASTING; TECHNOLOGY UTILIZATION; ASSESSMENTS; COSTS; ESTIMATING
Downloads: 54
[texts]Hydrodynamic and aerodynamic tests of a family of models of seaplane floats with varying angles of dead rise - Parkinson, John B.
No Abstract Available
Keywords: BRAYTON CYCLE; ENERGY STORAGE; ENGINE DESIGN; SOLAR DYNAMIC POWER SYSTEMS; HEAT OF FUSION; HIGH TEMPERATURE; SILICON; THERMODYNAMIC EFFICIENCY; WEIGHT REDUCTION
Downloads: 79
[texts]Spark Ignition of Monodisperse Fuel Sprays - Danis, Allen M.
A study of spark ignition energy requirements was conducted with a monodisperse spray system allowing independent control of droplet size, equivalent ratio, and fuel type. Minimum ignition energies were measured for n-heptane and methanol sprays characterized at the spark gap in terms of droplet diameter, equivalence ratio (number density) and extent of prevaporization. In addition to sprays, minimum ignition energies were measured for completely prevaporized mixtures of the same fuels over a ra...
Keywords: ALKALINE BATTERIES; ELECTRIC ENERGY STORAGE; REGENERATIVE FUEL CELLS; SPACECRAFT POWER SUPPLIES; ELECTROLYTES; SERVICE LIFE; SPACE SHUTTLE ORBITERS; SPACE STATIONS; STACKS
Downloads: 120
[texts]Wind Charged Battery Storage Facility:Utility Post-Consumer EV Batteries for Peak Grid Distribution
The proposed concept is a means to store wind energy in electric vehicle (EV) batteries after they have degraded past their usable life in consumer vehicles extending the life cycle of the batteries. With the recent excitement surrounding EVs, a surplus of post consumer batteries and reject batteries is expected a few years down the road. The batteries would be utilized to store electricity during off-peak demand periods and redistribute to the grid during on-peak demand periods for grid stabili...
Keywords: Battery Energy Storage; Electric Vehicles; Electric Vehicle Batteries; Michigan Wind Energy; On-peak/Off-peak Grid Stabilization
Downloads: 4
[texts]21. Eng PV Battery To The Grid Integration Of Hybrid Energy P. Mohan - P. MOHAN, G. S. SUGANYA & T. SIVANANDHAN
Grid integration of photo voltaic (PV)/Battery hybrid energy conversion system with (i) multi-functional features of micro grid-side bidirectional voltage source converter (μGVSC) (ii) tight voltage regulation capability of battery converter (iii) MPPT tracking performance of high gain integrated cascaded boost (HGICB) dc-dc Converter with quadratic gain and less current ripple are presented in this paper...
Keywords: PV Energy Conversion System; High Gain Integrated Cascaded Boost DC-DC Converter; Instantaneous Symmetrical Components Theory; Battery Energy Storage System
Downloads: 1
[texts]Heliocentric abort delta 5 requirements for 1977 - 1986 Mars conjunction-class missions - Mcneely, J. T.
No Abstract Available
Keywords: HELIUM; SUPERCONDUCTORS (MATERIALS); INTERSTITIALS; METALLIC HYDROGEN; PHONONS; QUANTUM THEORY; VACANCIES (CRYSTAL DEFECTS); CRYSTALLOGRAPHY; ENERGY STORAGE; SOLID STATE
Downloads: 55
[texts]The Role of Bearing and Scan Mechanism Life Testing in Flight Qualification of the MODIS Instrument - VanDyk, Steven G.
The Moderate Resolution Imaging Spectroradiometer (MODIS) is an instrument aboard the Terra (EOS AM-11) satellite and has been operating successfully since December 1999. MODIS has been viewing the entire Earth's surface and gathering data to better understand the global dynamics and processes occurring on land, in the oceans, and in the lower atmosphere. All observations are made through an extremely high resolution, optically and mechanically precise, scan mirror motor/encoder assembly...
Keywords: MATHEMATICAL MODELS; ENERGY STORAGE; CONFINEMENT; NUMERICAL ANALYSIS; TOROIDAL PLASMAS; ELECTRON SPIN; TOROIDS; STABILITY; PLASMAS (PHYSICS); MAGNETIC FIELDS; FLUX DENSITY
Downloads: 91
[texts]Particle Morphology Effects on Flow Characteristics of PS304 Plasma Spray Coating Feedstock Powder Blend - Stanford, Malcolm K.
The effects of BaF2-CaF 2 particle morphology on PS304 feedstock powder flow ability have been investigated. BaF2-CaF2 eutectic powders were fabricated by comminution (angular) and by gas atomization (spherical). The fluoride powders were added incrementally to the other powder constituents of the PS304 feedstock: nichrome, chromia, and silver powders. A linear relationship between flow time and concentration of BaF2-CaF2 powder was found...
Keywords: ATTITUDE CONTROL; ROTOR SPEED; SPACECRAFT ORBITS; ENERGY STORAGE; FLYWHEELS; MAGNETIC SUSPENSION; SPACECRAFT CONTROL; ROTOR DYNAMICS; MOMENTUM; STEERING; COST REDUCTION
Downloads: 59
[texts]Helium technology issues - Kittel, Pete
A number of future space missions require liquid helium for cooling scientific payloads. These missions will require the long term storage and resupply of liquid helium at temperatures of 1.4 - 2.1 Kelvin. In addition, some of the proposed instruments will require refrigeration to temperatures as low as 50 mK. A variety of liquid helium based refrigerator systems could provide this subkelvin cooling...
Keywords: BEAM INJECTION; ELECTRON BEAMS; SPACE PLASMAS; SPACE STATIONS; ELECTRON FLUX DENSITY; ENERGY STORAGE; PLASMA INTERACTIONS; SPACEBORNE EXPERIMENTS
Downloads: 69
[texts]Airbreathing Hypersonic Vision-Operational-Vehicles Design Matrix - Hunt, James L.
This paper presents the status of the airbreathing hypersonic airplane and space-access vision-operational-vehicle design matrix, with emphasis on horizontal takeoff and landing systems being, studied at Langley, it reflects the synergies and issues, and indicates the thrust of the effort to resolve the design matrix including Mach 5 to 10 airplanes with global-reach potential, pop-up and dual-role transatmospheric vehicles and airbreathing launch systems...
Keywords: FERROELECTRICITY; TRANSISTORS; CAPACITORS; ELECTRIC ENERGY STORAGE; MEMORY (COMPUTERS); ARCHITECTURE (COMPUTERS); HEAVY IONS; LATCH-UP; ELECTRICAL IMPEDANCE; ISOLATION; DIELECTRICS; CIRCUITS
Downloads: 108
[texts]Inter-Satellite Communications Considerations and Requirements for Distributed Spacecraft and Formation Flying Systems - Kwadrat, Carl F.
In order to avoid selecting inadequate inter-spacecraft cross-link communications standards for Distributed Spacecraft System (DSS) missions, it is first necessary to identify cross-link communications strategies and requirements common to a cross-section of proposed missions. This paper addresses the cross-link communication strategies and requirements derived from a survey of 39 DSS mission descriptions that are projected for potential launch within the next 20 years...
Keywords: CAPACITORS; ELECTRIC BATTERIES; SPACECRAFT POWER SUPPLIES; ELECTRIC ENERGY STORAGE; COMPUTERIZED SIMULATION; MATHEMATICAL MODELS; ELECTRICAL MEASUREMENT; AEROSPACE VEHICLES; EQUIVALENT CIRCUITS
Downloads: 152
[texts]Underground Gas Storage Market in Europe, 2014 - Priyal Clinton
The Report “Underground Gas Storage Industry Outlook in Europe, 2014 – Details of All Operating and Planned Gas Storage Sites″ by GlobalData is now available at RnRMarketResearch.com. Contact sales@rnrmarketresearch.com with “Underground Gas Storage Industry Outlook in Europe, 2014 – Details of All Operating and Planned Gas Storage Sites″ in subject line and your contact details to purchase this report or get your questions answered.This energy report offering, “Underground Gas Sto...
Keywords: Market; Industry; Energy; Power; Energy Storage; Gas Storage; Underground Gas Storage; Underground; Gas Storage Market; Gas Storage Industry; Europe
[texts]The Relative Reactivity of Deoxyribose and Ribose: Did DNA Come Before RNA - Dworkin, Jason P.
If it is assumed that there was a precursor to the ribose-phosphate backbone of RNA in the preRNA world (such as peptide nucleic acid), then the entry of various sugars into the genetic material may be related to the stability and non-enzymatic reactivity of the aldose. The rate of decomposition of 2-deoxyribose has been determined to be 1/3 that of ribose. In addition we have measured the amount of free aldehyde by H-1 and C-13 NMR and find that it has approximately 0.15 free aldehyde compared ...
Keywords: LOW EARTH ORBITS; LAUNCHING; GEOSYNCHRONOUS ORBITS; TETHERING; REUSABLE LAUNCH VEHICLES; PAYLOADS; COSTS; TRANSPORTATION; KINETIC ENERGY; ENERGY STORAGE
Downloads: 116
[texts]National Research Council Dialogue to Assess Progesss on NASA's Human Exploration Systems and Mobility Capability Roadmap Development: General Background and Introduction - Inman, Thoma
General Background and Introduction of Capability Roadmaps: Agency Objective. Strategic Planning Transformation. Advanced Planning Organizational Roles. Public Involvement in Strategic Planning. Strategic Roadmaps and Schedule. Capability Roadmaps and Schedule. Technology and Capability Readiness Levels. Relationships Between Roadmaps. Purpose of NRC Review. Capability Roadmap Development (Team Progress to Date).
Keywords: ALGORITHMS; SOLAR GENERATORS; ELECTRICITY; ENERGY STORAGE; FLYWHEELS; SPACECRAFT POWER SUPPLIES; BUS CONDUCTORS; CONTROLLERS; SOLAR ARRAYS; SOLAR CELLS
Downloads: 67
[texts]Electron Field Emission Properties of Textured Platinum Surfaces - Sovey, James S
During ground tests of electric microthrusters and space tests of electrodynamic tethers the electron emitters must successfully operate at environmental pressures possibly as high as 1x10(exp -4) Pa. High partial pressures of oxygen, nitrogen, and water vapor are expected in such environments. A textured platinum surface was used in this work for field emission cathode assessments because platinum does not form oxide films at low temperatures...
Keywords: NICKEL CADMIUM BATTERIES; LIFE (DURABILITY); PERFORMANCE TESTS; ENVIRONMENT SIMULATION; CHARGE EFFICIENCY; ENERGY STORAGE; LOW EARTH ORBITS; TEMPERATURE DEPENDENCE
Downloads: 140
[texts]Some aspects of wind tunnel magnetic suspension systems with special application at large physical scales - Britcher, C. P
Wind tunnel magnetic suspension and balance systems (MSBSs) have so far failed to find application at the large physical scales necessary for the majority of aerodynamic testing. Three areas of technology relevant to such application are investigated. Two variants of the Spanwise Magnet roll torque generation scheme are studied. Spanwise Permanent Magnets are shown to be practical and are experimentally demonstrated...
Keywords: ATTITUDE CONTROL; POWER CONDITIONING; SAFETY; SOLAR ARRAYS; ELECTROCHEMISTRY; ENERGY STORAGE; FLYWHEELS; SPACECRAFT POWER SUPPLIES; DATA BASES; ELECTRIC POTENTIAL; MAGNETS; PAYLOADS
Downloads: 311
[texts]An Adaptive Unstructured Grid Method by Grid Subdivision, Local Remeshing, and Grid Movement - Pirzadeh, Shahyar Z
An unstructured grid adaptation technique has been developed and successfully applied to several three dimensional inviscid flow test cases. The approach is based on a combination of grid subdivision, local remeshing, and grid movement. For solution adaptive grids, the surface triangulation is locally refined by grid subdivision, and the tetrahedral grid in the field is partially remeshed at locations of dominant flow features...
Keywords: FLYWHEELS; CONTINGENCY; ROTORS; INTERNATIONAL SPACE STATION; ATTITUDE (INCLINATION); ATTITUDE CONTROL; COMPUTERIZED SIMULATION; SPACECRAFT MOTION; TORQUE; COUNTER ROTATION; ENERGY STORAGE
Downloads: 102
[texts]Antarctic Meteorite Newsletter, Volume 9, Number 3 - NON
No Abstract Available
Keywords: BRAYTON CYCLE; HEAT EXCHANGERS; INSULATION; ENERGY STORAGE; HEAT PIPES; SOLAR COLLECTORS; STRESS ANALYSIS; STRUCTURAL DESIGN; APERTURES; COST ESTIMATES; HARDWARE
Downloads: 84
[texts]Spinoff 2003: 100 Years of Powered Flight - NON
Today, NASA continues to reach milestones in space exploration with the Hubble Telescope, Earth-observing systems, the Space Shuttle, the Stardust spacecraft, the Chandra X-Ray Observatory, the International Space Station, the Mars rovers, and experimental research aircraft these are only a few of the many initiatives that have grown out of NASA engineering know-how to drive the Agency s missions. The technical expertise gained from these programs has transferred into partnerships with academia,...
Keywords: HYDROGEN OXYGEN FUEL CELLS; REGENERATIVE FUEL CELLS; PERFORMANCE TESTS; ENERGY STORAGE; POLARIZATION; STEADY STATE; OUTPUT; ELECTRIC POTENTIAL
Downloads: 106
[texts]Regulations and regulatory agencies - NON
The following topics are discussed: (1) a brief history of aviation regulation and the principle agencies regulating aviation and some of those regulating the carriers with which air carriers must interact; (2) the present economic deregulation, some of its implications for the industry, and prospects for the future; (3) the prospects for intermodal transportation of freight and the various legal and regulatory impediments; and (4) the problems presented to the industry by aircraft noise regulat...
Keywords: ELECTRIC POWER SUPPLIES; SYSTEMS ANALYSIS; TECHNOLOGY ASSESSMENT; THERMAL ENERGY; NASA PROGRAMS; PROJECT PLANNING; SPACECRAFT POWER SUPPLIES; SYSTEMS MANAGEMENT; CHEMICAL ENERGY; ENERGY STORAGE; SOLAR ENERGY CONVERSION; SPACE STATIONS
Downloads: 57
[texts]Thioredoxin and evolution - Buchanan, B. B
Comparisons of primary structure have revealed significant homology between the m type thioredoxins of chloroplasts and the thioredoxins from a variety of bacteria. Chloroplast thioredoxin f, by comparison, remains an enigma: certain residues are invariant with those of the other thioredoxins, but a phylogenetic relationship to bacterial or m thioredoxins seems distant. Knowledge of the evolutionary history of thioredoxin f is, nevertheless, of interest because of its role in photosynthesis...
Keywords: BIOLOGICAL EVOLUTION; DRYING; IRON; KAOLINITE; SILICON DIOXIDE; SURFACE REACTIONS; TRACE CONTAMINANTS; WATER; WETTING; CATALYSIS; CHEMICAL REACTIONS; CLAYS; ENERGY STORAGE; HYDRAZINES; OXIDATION; REACTION KINETICS; CATALYSTS
Downloads: 24
[texts]Long-range planning cost model for support of future space missions by the deep space network - Sherif, J. S.
A simple model is suggested to do long-range planning cost estimates for Deep Space Network (DSP) support of future space missions. The model estimates total DSN preparation costs and the annual distribution of these costs for long-range budgetary planning. The cost model is based on actual DSN preparation costs from four space missions: Galileo, Voyager (Uranus), Voyager (Neptune), and Magellan. The model was tested against the four projects and gave cost estimates that range from 18 percent ab...
Keywords: CALCIUM; CHEMICAL REACTIONS; DAYTIME; ESTIMATING; HEAT TRANSFER; HYDROXIDES; MASS RATIOS; WATER; CHEMICAL REACTORS; ENERGY STORAGE; LUNAR BASES; LUNAR SOIL; NIGHT; REACTOR DESIGN; SOLAR ENERGY; THERMOCHEMISTRY
Downloads: 99
[texts]Public policy - NON
Public policy issues which relate to the air cargo integrated system are basically issues of energy, economics, and politics. The energy picture must be displayed; the economic considerations must be explicated; and the political ambiance in which decisions occur must be defined in order to comprehend the global significance of the ACIS (air cargo integrated system). The following topics are addressed: (1) American political culture as it relates to the ACIS; (2) the economics of materials and e...
Keywords: MILITARY OPERATIONS; SOLAR CELLS; SOLAR GENERATORS; SPACE STATIONS; SPACECRAFT POWER SUPPLIES; TECHNOLOGY ASSESSMENT; ARTIFICIAL SATELLITES; ENERGY STORAGE; MILITARY SPACECRAFT; MISSION PLANNING; NICKEL HYDROGEN BATTERIES
Downloads: 82
[audio]May 28 Green Living Show - Memorial Day - Green Living
1) Green Living Radio Theme 2) Ivette Grilled Tarragon Chicken and Alfalfa Sprout Salad 3) New Video Ramones Commercial 4) Frank Oley Jalapeno Bloody Mary 5) WPC Commercial 6) Dr. Steve Crane 7) Another Lonely Year 8) Regret the Hour 9) May 28 Closing 10) The Runaway (Studio Version)
Keywords: Chef Ivette; Grilled Chicken; Tarragon; Alfalfa; Salad; Frank Oley; Jalapeno; Bloody Mary; Memorial Day; Dr. Steve Crane; Energy Storage; Light Sail Energy; Regret the Hour
Downloads: 22
[texts])research in the conversion of various forms of energy by unconventional techniques) status report, jun. 1964 - Bockris, J. O
Methods for energy conversion in biochemical fuel cells, plasma physics, and thermal energy storage
Keywords: BIOCHEMICAL FUEL CELLS; PLASMA PHYSICS; THERMAL ENERGY STORAGE; BIOCHEMISTRY; ENERGY CONVERSION; HEAT STORAGE; LACTATES; PLASMA PHYSICS; PYRUVATES; BIOCHEMICAL FUEL CELL; ENERGY CONVERSION
Downloads: 112
[texts]Spaceflight and Immune Responses of Rhesus Monkeys - Sonnenfeld, Geral
In the grant period, we perfected techniques for determination of interleukin production and leukocyte subset analysis of rhesus monkeys. These results are outlined in detail in publication number 2, appended to this report. Additionally, we participated in the ARRT restraint test to determine if restraint conditions for flight in the Space Shuttle could contribute to any effects of space flight on immune responses...
Keywords: HEAT STORAGE; EUTECTICS; CONVECTIVE FLOW; THERMAL RADIATION; WORKING FLUIDS; MICROGRAVITY; INLET TEMPERATURE; ENERGY STORAGE; SOLAR COLLECTORS; PHASE CHANGE MATERIALS; MELTING; FREEZING; CONDUCTIVE HEAT TRANSFER; PRANDTL NUMBER; TEMPERATURE EFFECTS
Downloads: 62
[texts]2018 Floating Production Systems Market Research
This report estimates the floating production systems market in terms of volume and value. The volume market is estimated in terms of number of orders booked per year and value in terms of contract value. This has been broken down into component regions and is further split into countries.Floating production systems are required for oil and gas development. The ever-increasing offshore exploration and production activities across the globe and the drilling activities at ultra-deep water depths a...
Keywords: Floating Production Systems Market; Floating Production Systems; Floating Production Systems Market forecast; Floating Production Systems Market 2018; Floating Production Systems industry; energy storage
Downloads: 2
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